In PSE13 organizer I'm getting lots of duplicate photos, shot with various cameras and phones, that have the following file name, thumb_IMG_####.jpg? Often followed by another duplicate photo with file, thumb_IMG_####_1024.jpg? Any help would be most appreciated .
Do you use another tool than the organizer to download files from your camera or card? Some utilities provided with your camera do create thumbnails on import. They are small, but recognized as valid image formats by the downloader.
The solution is to download only from the organizer or by simply using your explorer / finder to copy files from the camera or card to your computer and not to use the external utility.
It's easy to select and delete them after import, based on their file name or file size.